An unexpected X-ray transient favors very stiff neutron-star matter

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2019,（20）
• 页码范围: 1474-1475
• 页数: 2页
• 语种: 英文

摘要

Short-duration gamma-ray bursts (SGRBs) are mysterious gamma-ray flashes with durations less than two seconds,which occur at the cosmological distances.Some of them usually not only have very tenuous medium gases and old host galaxies but also are in the outskirts of the galaxies,suggesting an origin of binary neutron star (NS) mergers [1].This origin was confirmed undoubtedly thanks to the discoveries of a gravitational wave event named GW170817 and its electromagnetic counterparts (an SGRB,a multiwavelength kilo-nova,and a broadband afterglow) [2].